CN204469519U - A kind of flue gas desulfurization denitration dust-removing integrated device - Google Patents
A kind of flue gas desulfurization denitration dust-removing integrated device Download PDFInfo
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- CN204469519U CN204469519U CN201420784994.6U CN201420784994U CN204469519U CN 204469519 U CN204469519 U CN 204469519U CN 201420784994 U CN201420784994 U CN 201420784994U CN 204469519 U CN204469519 U CN 204469519U
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- flue gas
- desulfurizing tower
- tower
- integrated device
- oxygen reduction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model provides a kind of flue gas desulfurization denitration dust-removing integrated device, comprises sedimentation spray deduster, desulfurizing tower, oxygen reduction tower, solid-liquid separator, liquid-feeding pump, surge drum, air blast and chimney; This device be make flue gas by during reducing solution and its generation reduction reaction precipitate elemental sulfur powder, NO
2be reduced to N simultaneously
2discharge, join oxygen by the air blast of oxygen reduction tower during fume emission and again discharge after reduced sulphur powder, in sweetening process, in aqueous, dust removal efficiency is high in flue dust sedimentation.Object is flue gas SO
2be reduced to elemental sulfur to be reclaimed, desulfur denitrate dust collecting is once completed.
Description
Technical field
The utility model is a kind of smoke eliminator, particularly relates to a kind of flue gas desulfurization denitration dust-removing integrated device.
Background technology
Desulphurization denitration is the requisite operation for purifying.At present, China still there will be the insufficient situation of many burnings to the burning of coal, and this will cause containing a large amount of nitre, sulfur material in waste gas, in order to prevent acid rain and other Air seriously polluted, needs to carry out desulfur denitrate dust collecting link.Although China payes attention to some extent industrial enterprise's disposal of pollutants from the eighties, most industry stove is to flue gas SO both at home and abroad
2pollution control adopts spray column lime method, limestone/gypsum method, in recent years sequential use seawater method, electron beam and deposed ammonia method, and still desulfurization degree is low, and smog discharge temperature is low, and water smoke is large, equipment manufacturing cost is high, and service life is short, and enterprise is difficult to bear.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of flue gas desulfurization denitration dust-removing integrated device, and reclaim sulphur powder, reducing solution recycles, non-secondary pollution, and operating cost is low, realizes desulfur denitrate dust collecting integration.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of flue gas desulfurization denitration dust-removing integrated device, comprises sedimentation spray deduster 1, desulfurizing tower 4, oxygen reduction tower 5, solid-liquid separator 7, liquid-feeding pump 9, surge drum 10, air blast 11 and chimney 12; The lower left side of sedimentation spray deduster 1 is provided with smoke air inlet, sedimentation spray deduster 1 top is provided with flue gas exhaust mouth; Several shower nozzles 2 are comprised in described sedimentation spray deduster 1; The flue gas exhaust mouth of described sedimentation spray deduster 1 is connected with the lower left side of desulfurizing tower 4 by several smoke pipes; The bottom of described desulfurizing tower 4 is provided with reducing solution, and the bottom of desulfurizing tower 4 is connected with solid-liquid separator 7; Described solid-liquid separator 7 is connected with liquid-feeding pump 9 by water tank 8; The top of described desulfurizing tower 4 connects the upper left side of oxygen reduction tower 5; The lower right side of described oxygen reduction tower 5 connects chimney 12; The top of described desulfurizing tower 4 and the shower nozzle 2 of sedimentation spray deduster are connected to liquid-feeding pump 9 respectively by feeding pipe 6; Described air blast 11 is connected with desulfurizing tower 4 with the bottom of oxygen reduction tower 5 respectively by surge drum 10.
Further, described shower nozzle 2 is 10.
Further, described reducing solution is sodium sulfide solution.
Further, described smoke pipe is 2.
Beneficial effect: the flue gas desulfurization denitration dust-removing integrated device of one provided by the invention, first dedusting, then desulphurization denitration.Adopt sodium sulfide solution and smoke reaction, because cigarette holder directly inserts in sodium sulfide solution, flue gas and reducing solution are fully contacted and carries out desulphurization denitration.This apparatus structure is simple, economic and practical, non-secondary pollution.Also reclaim elemental sulfur by solid-liquid separator simultaneously, and sodium sulfide solution is reclaimed, can recycle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is theory diagram of the present utility model;
Wherein: 1 sedimentation spray deduster, 2 shower nozzles, 4 desulfurizing towers, 5 oxygen reduction towers, 6 feeding pipes, 7) solid-liquid separator, 8 water tanks, 9 liquid-feeding pumps, 10 surge drums, 11 air blasts, 12 chimneys.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
The flue gas desulfurization denitration dust-removing integrated device of one as shown in Figure 1, comprises sedimentation spray deduster 1, desulfurizing tower 4, oxygen reduction tower 5, solid-liquid separator 7, liquid-feeding pump 9, surge drum 10, air blast 11 and chimney 12; The lower left side of sedimentation spray deduster 1 is provided with smoke air inlet, sedimentation spray deduster 1 top is provided with flue gas exhaust mouth; Several shower nozzles 2 are comprised in described sedimentation spray deduster 1; The flue gas exhaust mouth of described sedimentation spray deduster 1 is connected with the lower left side of desulfurizing tower 4 by several smoke pipes; The bottom of described desulfurizing tower 4 is provided with reducing solution, and the bottom of desulfurizing tower 4 is connected with solid-liquid separator 7; Described solid-liquid separator 7 is connected with liquid-feeding pump 9 by water tank 8; The top of described desulfurizing tower 4 connects the upper left side of oxygen reduction tower 5; The lower right side of described oxygen reduction tower 5 connects chimney 12; Top and the sedimentation spray nozzle 2 of described desulfurizing tower 4 are connected to liquid-feeding pump 9 respectively by feeding pipe 6; Described air blast 11 is connected with desulfurizing tower 4 with the bottom of oxygen reduction tower 5 respectively by surge drum 10.
Further, described shower nozzle 2 is 10.
Further, described reducing solution is sodium sulfide solution.
Further, described smoke pipe is 2.
High-temperature flue gas enters desulfurizing tower 4 and carries out desulfurization and denitrification reaction with reducing solution after entering sedimentation spray deduster 1 spraying and dedusting, flue gas fully contacts with reducing solution, and reaction thoroughly; Flue gas enters oxygen reduction tower 5 and again carries out redox desulfurization after desulfurizing tower 4, and the flue gas eventually passing desulfur denitrate dust collecting enters chimney 12 and discharges.Solid-liquid separator 7 is separated the sulphur powder and reducing solution that in desulfurizing tower, reducing solution and smoke reaction produce, reducing solution can pass through liquid-feeding pump: 1) send into the dedusting of sedimentation spray deduster 1,2) proceed desulfurization and denitrification reaction in feeding desulfurizing tower, reach the object recycled; Air blast 11 aims at desulfurizing tower and redox tower provides oxygen.The utility model non-secondary pollution, operating cost is low, and device is simple, achieves desulfur denitrate dust collecting integration.
Wherein involved reaction is:
(1).5SO
2+5H
2O—5H
2SO
3
(2).3H
2SO
3+3Na
2S—3Na
2SO
3+H
2S
(3).2NO
2+2H
2S—N
2+S+2H
2O
(4).H
2S+SO
2—3S+H
2O
Distribution reaction is:
(1) 2H
2s+3O
2=H
2sO
3(O
2time sufficient)
(2) 2H
2s+O
2=2H
2o+2S ↓ (O
2time appropriate)
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a flue gas desulfurization denitration dust-removing integrated device, is characterized in that: comprise sedimentation spray deduster (1), desulfurizing tower (4), oxygen reduction tower (5), solid-liquid separator (7), liquid-feeding pump (9), surge drum (10), air blast (11) and chimney (12); The lower left side of sedimentation spray deduster (1) is provided with smoke air inlet, sedimentation spray deduster (1) top is provided with flue gas exhaust mouth; Several shower nozzles (2) are comprised in described sedimentation spray deduster (1); The flue gas exhaust mouth of described sedimentation spray deduster (1) is connected with the lower left side of desulfurizing tower (4) by several smoke pipes; The bottom of described desulfurizing tower (4) is provided with reducing solution, and the bottom of desulfurizing tower (4) is connected with solid-liquid separator (7); Described solid-liquid separator (7) is connected with liquid-feeding pump (9) by water tank (8); The top of described desulfurizing tower (4) connects the upper left side of oxygen reduction tower (5); The lower right side of described oxygen reduction tower (5) connects chimney (12); The top of described desulfurizing tower (4) and the shower nozzle (2) of sedimentation spray deduster (1) are connected to liquid-feeding pump (9) respectively by feeding pipe (6); Described air blast (11) is connected with desulfurizing tower (4) with the bottom of oxygen reduction tower (5) respectively by surge drum (10).
2. the flue gas desulfurization denitration dust-removing integrated device of one according to claim 1, is characterized in that: described shower nozzle (2) is 10.
3. the flue gas desulfurization denitration dust-removing integrated device of one according to claim 1, is characterized in that: described reducing solution is sodium sulfide solution.
4. the flue gas desulfurization denitration dust-removing integrated device of one according to claim 1, is characterized in that: described smoke pipe is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784994.6U CN204469519U (en) | 2014-12-12 | 2014-12-12 | A kind of flue gas desulfurization denitration dust-removing integrated device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784994.6U CN204469519U (en) | 2014-12-12 | 2014-12-12 | A kind of flue gas desulfurization denitration dust-removing integrated device |
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|---|---|
| CN204469519U true CN204469519U (en) | 2015-07-15 |
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ID=53625255
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056741A (en) * | 2015-08-27 | 2015-11-18 | 北京市环境保护科学研究院 | Method and device for reduction absorption treatment of pollutants in natural gas boiler smoke |
| CN106925113A (en) * | 2015-12-29 | 2017-07-07 | 烟台大学 | A kind of dust-removal and desulfurizing denitration flue gas purifying technique |
| CN108722134A (en) * | 2017-04-15 | 2018-11-02 | 史汉祥 | A kind of denitration method for flue gas and flue gas desulfurization and denitration method |
-
2014
- 2014-12-12 CN CN201420784994.6U patent/CN204469519U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056741A (en) * | 2015-08-27 | 2015-11-18 | 北京市环境保护科学研究院 | Method and device for reduction absorption treatment of pollutants in natural gas boiler smoke |
| CN106925113A (en) * | 2015-12-29 | 2017-07-07 | 烟台大学 | A kind of dust-removal and desulfurizing denitration flue gas purifying technique |
| CN108722134A (en) * | 2017-04-15 | 2018-11-02 | 史汉祥 | A kind of denitration method for flue gas and flue gas desulfurization and denitration method |
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